Math theory

Theory of mathematics from secondary to first courses of technical degrees

Sangaku · com.sangaku.maths.en

5.0 out of 5 (1 rating) 1M+ downloads v4.0.0 17 MB Android 4.4+ PEGI 3 · Everyone

Download APK 17 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v4.0.0 (40000)
Updated: Sep 20, 2026 (18 days ago)
APK size: 17 MB
Requires: Android 4.4+ (API 19)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Jan 15, 2021 (at least)
Permissions: 3
Website: sangakoo.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Math theory is an app by Sangaku in the Education category, listed since at least January 2021. It has no native code, so it runs on any Android processor.

It asks for 3 permissions, none of them sensitive.

Description

From the listing uploaded by “appupdater”.

Sangaku Maths App is an open educational resource that offers the whole theory of mathematics from Secondary to first courses of technical degrees. An own theory, created by an interdisciplinary team, which stands for very didactic explanations and examples. Over 1000 printed pages of math theory. The contents are organized in 9 essential branches of mathematics: algebra, geometry, recreational mathematics, calculation and analysis, applied mathematics, probability and statistics, fundamentals, discrete mathematics and number theory. Each is divided into subjects, categorized by difficulty, to help you in your learning process. More than 500 issues, available in English, Spanish and Catalan, are what make this app a perfect resource to complement your learning.

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Sep 20, 2026.
Certificate issued to “Sangaku” This is the certificate of the Google Play version.

Store checks and file details

Developer signature verified Sep 20, 2026
Validated against Google Play Sep 20, 2026
Signed byCN=Israel Fenor, OU=CTO, O=Sangaku, L=Barcelona, ST=Catalunya, C=ES
Signing certificate (SHA-1)C8:CC:16:FC:7E:23:1B:1E:93:B4:51:7F:3B:67:A6:1B:DF:F2:52:E9
File MD5b1705361a520400574b6b19c611962b4
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (3)

Math theory requests 3 permissions, none of them sensitive.

Full network access android.permission.INTERNET
Prevent the device from sleeping android.permission.WAKE_LOCK
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Math theory APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Math theory APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is b1705361a520400574b6b19c611962b4.